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author | Zach Hilman <zachhilman@gmail.com> | 2018-09-20 03:59:44 +0200 |
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committer | Zach Hilman <zachhilman@gmail.com> | 2018-09-22 01:53:05 +0200 |
commit | 3e5c3d0f166b432b1e56e6e3a286feb21281bc7a (patch) | |
tree | 12617aa462578063599c86f8f2fc72dc8a3cfcc0 /src/core/file_sys/vfs_layered.h | |
parent | vfs_vector: Add VectorVfsFile (diff) | |
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Diffstat (limited to 'src/core/file_sys/vfs_layered.h')
-rw-r--r-- | src/core/file_sys/vfs_layered.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/core/file_sys/vfs_layered.h b/src/core/file_sys/vfs_layered.h new file mode 100644 index 000000000..f345c2fb6 --- /dev/null +++ b/src/core/file_sys/vfs_layered.h @@ -0,0 +1,50 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <memory> +#include "core/file_sys/vfs.h" + +namespace FileSys { + +// Wrapper function to allow for more efficient handling of dirs.size() == 0, 1 cases. +VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name = ""); + +// Class that stacks multiple VfsDirectories on top of each other, attempting to read from the first +// one and falling back to the one after. The highest priority directory (overwrites all others) +// should be element 0 in the dirs vector. +class LayeredVfsDirectory : public VfsDirectory { + friend VirtualDir LayerDirectories(std::vector<VirtualDir> dirs, std::string name); + + LayeredVfsDirectory(std::vector<VirtualDir> dirs, std::string name); + +public: + std::shared_ptr<VfsFile> GetFileRelative(std::string_view path) const override; + std::shared_ptr<VfsDirectory> GetDirectoryRelative(std::string_view path) const override; + std::shared_ptr<VfsFile> GetFile(std::string_view name) const override; + std::shared_ptr<VfsDirectory> GetSubdirectory(std::string_view name) const override; + std::string GetFullPath() const override; + + std::vector<std::shared_ptr<VfsFile>> GetFiles() const override; + std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override; + bool IsWritable() const override; + bool IsReadable() const override; + std::string GetName() const override; + std::shared_ptr<VfsDirectory> GetParentDirectory() const override; + std::shared_ptr<VfsDirectory> CreateSubdirectory(std::string_view name) override; + std::shared_ptr<VfsFile> CreateFile(std::string_view name) override; + bool DeleteSubdirectory(std::string_view name) override; + bool DeleteFile(std::string_view name) override; + bool Rename(std::string_view name) override; + +protected: + bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override; + +private: + std::vector<VirtualDir> dirs; + std::string name; +}; + +} // namespace FileSys |